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Table 1 Patient characteristics

From: Expression of activated signal transducer and activator of transcription-3 as a predictive and prognostic marker in advanced esophageal squamous cell carcinoma

   p-STAT3+ p-STAT3− P
Age (year)     
 Mean 40-83 40-83 42–81 0.605
 Range 58.100 58.100  
Sex     
 Male 127.000 61.000 66 0.816
 Female 26.000 12.000 14
Primary sit     
 Upper thorax 26.000 12.000 14  
 Middle thorax 46.000 22.000 24 0.415
 Lower thorax 81.000 39.000 42  
Degree of differentiation    
 Well 35.000 16.000 19  
 Moderate 74.000 34.000 40 0.599
 Poor 44.000 23.000 21  
Local/distant metastasis    
 Local 17.000 5.000 11 0.298
 Distant 137.000 68.000 69
Site of metastasis     
 Lung 49.000 20.000 29  
 Liver 25.000 15.000 10  
 Lymph node 68.000 32.000 36 0.307
 Lung and liver 6.000 4.000 2  
 Other 5.000 2.000 3